#include "stdio.h"
int main()
{
	int a, b, c;
	a = 0;
	b = 0;
	c = 0;
	scanf_s("%d %d %d",&a,&b,&c);
	if (a < b)
	{
		int t = b;
		b = a;
		a = t;
	}
	if (a < c)
	{
		int t = c;
		c = a;
		a = t;
	}
	if (b < c)
	{
		int t = c;
		c = b;
		b = t;
	}
	printf("%d,%d,%d\n", a, b, c);
float sum = 0.0;
	int i = 1;
	int flg = 1;
	
	for (i = 1; i <= 100; i++)
	{
		sum = sum + 1.0*flg / i;
		flg = -flg;
	}
	printf("%f\n", sum);
	return 0;
	float sum1 ,sum2;
	sum1 = 0.0;
	sum2 = 0.0;
	for (int i = 1; i <= 100; i++)
	{
		if (i % 2 == 0)
		{
			sum1 = sum1 + 1.0 / i;
		}
		else
		{
			sum2 = sum2 + 1.0 / i;
		}

	}
	float s = sum2 - sum1;
	printf("%f", s);
		int i = 0;
		int count = 0;
		for (i = 0; i <= 100; i++)
		{
			if (i % 10 == 9)
			{
				count++;
			}
			if (i / 10 == 9)
			{
				count ++ ;
			}
		}
		printf("%d", count);
		int arr[10] = { 1,2,3,4,5,6,7,8,9,10 };
	int max = arr[0];
	for (int i = 1; i <= 10; i++)
	{
		if (max < arr[i])
			max = arr[i];
	}
	printf("%d", max);*/
	int i = 100;
	for (i = 100; i <= 200; i++)
	{
		int j =0;
		int flag = 1;
		for (j =2; j <= i-1; j++)
		{
			if (i % j == 0)
			{
				flag = 0;
				break;
			}
			if (flag == 1)
			{
				printf("%d\n", i);
			}
		}



	}
	return 0;
}